Find the probability distribution of
number of heads in two tosses of a coin .

Find the probability distribution of (i) number of heads in two tosses of a coin.  (ii) number of tails in the simultaneous tosses of three coins. (iii) number of heads in four tosses of a coin.

Find the probability distribution of number of heads in four tosses of a coin .

Find the probability distribution of the number of successes in two tosses of a die, where a success is defined as (i) number greater than 4 (ii) six appears on at least one die

Find the probability distribution of number of tails in the simultaneous tosses of three coins .

Find the mean number of heads in three tosses of a fair coin.

Find the probability of getting an even number when one die is tossed.

Write probability distribution, when three coins are tossed.

A coin is biased so that the head is 3 times as likely to occuras tail. If the coin is tossed twice, find the probability distribution of number of tails .